Nick Leghorn

This plugin adds a section to your Settings menu in the wp-admin section. Through that section you can perform two tasks:
<ul>
<li>A scripted, one-time action updating all of the posts in your blog that do not have a featured image where the script will either try to find a suitable image to use or use one you have provided and configure it for you.</li>
<li>An ongoing, continuous monitoring for posts that do not have a featured image, using the same logic to try and find a suitable featured image and setting that for the post.</li>
</ul>
You can find additional documentation for this plugin on the author’s blog <a href="https://blog.nickleghorn.com/2021/01/25/adding-a-featured-image-to-all-posts-in-wordpress-in-one-easy-click/" title="blog.nickleghorn.com" rel="nofollow ugc">blog.nickleghorn.com</a>
Special thanks to Robert Farago for giving me yet another massive site without any Featured Images to clean up for the impetus to finally make this available.

Featured Image Bulk Set Plugin

This is a plugin designed to do one simple job: programatically add a featured image in WordPress to existing posts. Either images already in the post …

Yan Metelitsa

YM Site Kit is a collection of small, practical utilities designed to make working with your WordPress site more convenient and efficient.
The plugin is based on real-world experience building and maintaining dozens of WordPress sites and includes tools that most often prove essential.
It is lightweight and includes only what is necessary for most sites. You can enable only the utilities you need.
<h3>Utilities</h3>
ℹ️ Advanced Columns
Adds useful columns to Post, Page, Plugin, and other list tables, and hides some rarely used ones.
💬 Comments Deactivator
Turns off the discussion system and hides comment-related elements in the admin interface.
👤 Hide User Fields
Hides rarely used fields on the Edit User screen to simplify the interface.
🛠️ Maintenance Mode
Allows only administrators to access the public part of the site.
🖼️ Media Converter
Automatically compresses and converts images to WebP upon upload.
®️ SVG Logo
Replaces the <code><img></code> element with <code><svg></code> when using <code>get_custom_logo()</code> function and the logo file is an SVG.
📐 SVG Support
Allows administrators to safely upload SVG files to the media library and use them.
🔤 Transliterator
Automatically replaces certain symbols in Post and Term slugs on save.
<h3>Upcoming Features</h3>
The plugin continues to evolve and gain new tools, adding only what is truly necessary for most sites based on experience from dozens of WordPress projects.

YM Site Kit

Enhance your website with powerful mini‑utilities.

Featured Image Bulk Set Plugin vs YM Site Kit